ASTROSAT CZTI

Data Quality Report

Orbit 20160731_G05_233T10_9000000570_level2

Creation date: 2025-11-04T13:37:07.302993
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1G05_233T10_9000000570cztM0_level2.fits modeM0/AS1G05_233T10_9000000570cztM0_level2_quad_clean.evt
Size (bytes)2,712,130,5602,145,401,280
Size2.5 GB 2.0 GB
Events in quadrant A10,316,35811,126,329
Events in quadrant B20,817,89414,233,664
Events in quadrant C20,059,25813,851,833
Events in quadrant D18,263,88613,086,006

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03180
B03210
C03180
D03230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04747510
B04254190
C04176100
D04961610

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A038780
B039300
C039410
D038810

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A189927125976.632548%
B18945441792.205812%
C18971837121.956588%
D189809109255.755786%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 255609 190348 0 0 0.00% 0.00%
B 223777 178583 0 0 0.00% 0.00%
C 227742 181712 0 0 0.00% 0.00%
D 255609 190329 0 0 0.00% 0.00%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 0 29 8310 8.84 2698 2533 653.2
A 7 110 8273 8.79 2698 2533 653.2
A 0 30 7658 7.85 2698 2533 653.2
B 5 232 12018 5.81 5573 5354 1147.7
B 15 3 11330 5.21 5573 5354 1147.7
B -1 -1 -1 -1.0 5573 5354 1147.7
D 6 60 11568 5.25 5289 4978 1255.0
D -1 -1 -1 -1.0 5289 4978 1255.0
D -1 -1 -1 -1.0 5289 4978 1255.0

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter